I have the same dry, dark mole that appeared out of nowhere about 5 years ago. It appeared on my lower abdomen. It actually has no feeling in it. I have been too scared to go to the doctor and find out what it really is. I dont have a history of skin cancer in my family, but we all know there's a first time for everything. I have recently enlisted in the Army and will be seeing a federal doctor within 4-6 weeks. If anyone gets a proper diagnosis in the mean time, please let me know. If not, I'll post my answer after seeing this doctor. You are not the only one experiencing this issue. I felt the same way until now. Thank you for any feedback you may have.

You described mine perfectly. Mines the size of a pencil erasure and is greyish blue, sometimes brown, and is dry and flaky shaped exactly like a circle. I was wondering if you had a diagnosis yet as it is the end of july. Thanks for your answers.